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Finding the Fourth Proportional to 562,061.13, 775,625.02 and 320,421.52

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Solution

The fourth proportional to 562,061.13, 775,625.02 and 320,421.52 is: 442,170.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,061.13 : 775,625.02 = 320,421.52 : x
  2. Step 2: Convert to fraction form
    562,061.13/775,625.02 = 320,421.52/x
  3. Step 3: Cross multiply
    562,061.13x = 775,625.02 × 320,421.52
  4. Step 4: Simplify right side
    562,061.13x = 248,526,948,026.91
  5. Step 5: Solve for x
    x = 248,526,948,026.91/562,061.13
  6. Step 6: Final answer
    x = 442,170.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.